CN106151568A - Cock processing technique, cock and plug valve - Google Patents
Cock processing technique, cock and plug valve Download PDFInfo
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- CN106151568A CN106151568A CN201610701223.XA CN201610701223A CN106151568A CN 106151568 A CN106151568 A CN 106151568A CN 201610701223 A CN201610701223 A CN 201610701223A CN 106151568 A CN106151568 A CN 106151568A
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- Prior art keywords
- cock
- carried out
- processing technique
- treatment
- rotating shaft
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0207—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor with special plug arrangement, e.g. special shape or built in means
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Taps Or Cocks (AREA)
Abstract
Disclose a kind of cock processing technique, cock and plug valve.Described cock processing technique, comprises the following steps: S1), the cock processing profile is carried out defat deoiling treatment；S2), cock is carried out blasting treatment；S3), cock is carried out surface cleaning process；S4), cock is carried out spray treatment；S5), cock is sintered.The cock using described cock processing technique to make, has more preferable wearability so that the service life of plug valve, reliability are greatly improved, and reduce driving torque.
Description
Technical field
The present invention relates to fluid technique, more particularly, to a kind of cock processing technique, cock and plug valve.
Background technology
Plug valve is the one of rotary valve, makes the passway on valve plug communicate with the passway on valve body by 90-degree rotation
Or separately, it is achieved a kind of valve being turned on and off.The shape of the valve plug of plug valve can become cylindrical or conical.In cylinder
In valve plug, passage is the most rectangular；And in cone-shaped valve plug, passage is in echelon.These shapes make the structure of plug valve become light
Ingeniously, but also create certain loss simultaneously.Plug valve is most suitable as being switched off and on medium and shunting is suitable for, but depends on
According to applicable character and the abrasion-resistance of sealing surface, sometimes can also be used for throttling.
Owing to plug valve relies on the position matching between its cock and body cavity to realize the connection of fluid passage
Or disconnecting, the sealing surface of described cock is of crucial importance for the reliability of plug valve.But, plug valve of the prior art
Cock, due to the reason such as the process technological level on its surface, especially sealing surface is relatively low, often results in plug valve and is constantly opening
Open in closing process so that the surface abrasion of cock, thus cause the inefficacy of valve, and then cause fluid media (medium) to be revealed, even pacify
The generation of full accident.
Summary of the invention
In view of this, it is an object of the invention to provide that one enables to plug valve service life, reliability carries significantly
High cock processing technique, cock and plug valve.
According to the first aspect of the invention, it is provided that a kind of cock processing technique, comprise the following steps:
S1), the cock to processing profile carries out defat deoiling treatment；
S2), cock is carried out blasting treatment；
S3), cock is carried out surface cleaning process；
S4), cock is carried out spray treatment；
S5), cock is sintered.
Preferably, described cock processing technique is further comprising the steps of:
Before cock is carried out defat deoiling treatment, first cock surface is checked, complete to determine cock surface
Good, not damage.
Preferably, the described step that cock carries out defat deoiling treatment includes:
Cock is positioned in stove, at a certain temperature, carries out the heat treated of certain time length；
Cool to the cock after heat treated with the furnace room temperature.
Preferably, the temperature of described heat treated is 290 DEG C-350 DEG C, and heat time heating time is 4-6 hour.
Preferably, the described step that cock carries out blasting treatment includes:
The conical surface to plug valve carries out the blasting treatment of certain time length, until the surface roughness of the described conical surface is Ra
1.6-2.0。
Preferably, the described step that cock carries out surface cleaning process includes:
Various foreign material with giant delivery cock surface；
Cock is dried.
Preferably, the described step that cock carries out spray treatment includes:
Cock is carried out the pre-heat treatment；
Cock is sprayed, is formed and there is certain thickness coating.
Preferably, the described step that cock carries out the pre-heat treatment includes:
Cock is heated, until it reaches 70 DEG C-90 DEG C.
Preferably, the material sprayed described cock is nickel alloy.
Preferably, the thickness of described coating is 12-23 micron.
Preferably, the described step being sintered cock includes:
At a certain temperature, cock is carried out the heat treated of certain time length；
After heat treated completes, cock is cooled to room temperature.
Preferably, in described heat-treatment process, heating-up temperature is 210 DEG C-290 DEG C, and heat time heating time is that 70-150 divides
Clock.
According to the second aspect of the invention, it is provided that a kind of cock, the cock processing technique described in employing is made.
According to the third aspect of the invention we, it is provided that a kind of plug valve, including:
Described cock,
Valve body, and
First rotating shaft and the second rotating shaft, wherein,
Described cock is installed in described valve body, and one end of described first rotating shaft is fixed on described valve body, and relative is another
One end supports described cock, and described second rotating shaft and described first rotating shaft are relatively fixed in described cock, and drives described
Cock rotates with described first rotating shaft for center of rotation.
The beneficial aspects that the present invention realizes is:
The cock that the cock processing technique using the present invention to provide is processed, the coating of its cock sealing surface and cock internal junction
There is between structure high degree of fusion so that coating firmly sticks in cock internal structure, form described sealing surface, simultaneously
This coating is homogeneous, has certain pliability, hardness and corrosion resistance so that the wearability of this cock is greatly enhanced,
Avoid due to the loss of cock sealing surface that the fluid media (medium) that causes is revealed, the very big service life adding plug valve, with
And reliability and persistence；On the other hand, it is possible to realize matching relationship more accurate between the inner chamber of valve body, reduce rotation
Moment of torsion.
Accompanying drawing explanation
By description to the embodiment of the present invention referring to the drawings, above-mentioned and other purposes of the present invention, feature and
Advantage will be apparent from.
Fig. 1 shows a kind of plug valve according to embodiments of the present invention；
Fig. 2 illustrates the structural representation of plug valve according to embodiments of the present invention；
Fig. 3 shows the cock processing process figure of plug valve according to embodiments of the present invention；
Fig. 4 shows the process chart of cock spray treatment step according to embodiments of the present invention.
Detailed description of the invention
It is more fully described various embodiments of the present invention hereinafter with reference to accompanying drawing.In various figures, identical element
Same or similar reference is used to represent.For the sake of clarity, the various piece in accompanying drawing is not necessarily to scale.
Fig. 1 shows a kind of plug valve according to embodiments of the present invention, is applied to control the flowing of fluid, comprising:
Cock 1,
Valve body 2, and
First rotating shaft 3 and the second rotating shaft 4, wherein,
Described cock 1 is installed in described valve body 2, and one end of described first rotating shaft 3 is fixed on described valve body 2, relatively
The other end support described cock 1, described second rotating shaft 4 is relatively fixed in described cock 1 with described first rotating shaft 3, and
Described cock 1 is driven to rotate with described first rotating shaft 3 for center of rotation.
Fig. 2 illustrates the structural representation of plug valve according to embodiments of the present invention.As in figure 2 it is shown, in this embodiment, institute
Stating cock 1 is cone, has conical seal (contact) face 100.Certainly, described cock 1 be not limited to cone, it is possible to for such as cylinder
Other shapes such as shape.Described cock 1 is made up of metal material, such as cast iron, high silicon iron or pyrite etc..
Fig. 3 shows the cock processing process figure of plug valve according to embodiments of the present invention.With reference to Fig. 3, knot below
Close concrete several embodiment to describe the processing technique of described cock 1 in detail.
Embodiment one:
S01), the cock 1 to processing profile carries out defat deoiling treatment；
Before cock 1 is carried out defat deoiling treatment, first to cock 1 surface, the especially conical surface 100 part is examined
Look into, intact to determine cock 1 surface, do not damage, scratch and rusty stain.
Concrete, defat deoiling treatment comprises the following steps again:
S011), cock 1 after such as machining or the technique such as casting forms profile, put it in stove, at 290 DEG C
Heating-up temperature under, laser heating 4 hours；
S012), the cock 1 after heat treated is cooled to the furnace room temperature.
After removing oil ungrease treatment, remove the greasy dirt and other burs produced in cock 1 course of processing, in order to
The carrying out of subsequent process flow.
S02), cock 1 is carried out blasting treatment；
Concrete, cock 1 to be put in sandblasting machine, the surface to cock 1, the especially conical surface 100 carry out certain time length
Blasting treatment, until the surface roughness of the described conical surface is Ra 1.6-2.0, in order to increase the adhesion on cock 1 surface.
S03), cock 1 is carried out surface cleaning process；
First cock 1 is placed on support, such as with on the support slipped through the net, or has on the support of hook, from
And cock 1 is placed on bushing or hangs on hook.
Concrete, this step comprises the following steps again:
S031), with the various foreign material on giant delivery cock 1 surface, including the grains of sand, dust and other bur；
S032), cock 1 is dried, such as by empty water and the method for blowing.
S04), cock 1 is carried out spray treatment；
With reference to Fig. 4, in this step, comprise the following steps the most again:
S041) cock 1 is carried out the pre-heat treatment, cock 1 is put in stove and heats, until it reaches 70 DEG C；
S042) conical surface 100 part of cock 1 being sprayed, form 12 microns of thick coatings, the material used by spraying is
Wear-resisting material, such as, be dissolved in the nickel alloy powder in solvent.
S05), cock 1 is sintered.
In this step, comprise the following steps the most again:
S051), stove is put in cock 1, at a temperature of 210 DEG C, to cock 1 heat treated 70 minutes；
S052), after heat treated completes, cock 1 is cooled to room temperature.
After above-mentioned steps, the conical surface 100 of described cock forms wear-resistant coating.
Embodiment two:
S01), the cock 1 to processing profile carries out defat deoiling treatment；
Before cock 1 is carried out defat deoiling treatment, first cock 1 surface is checked, to determine cock 1 surface
Intact, do not damage, scratch and rusty stain.
Concrete, defat deoiling treatment comprises the following steps again:
S011), cock 1 after such as machining or the technique such as casting forms profile, put it in stove, at 320 DEG C
Heating-up temperature under, laser heating 5 hours；
S012), the cock 1 after heat treated is cooled to the furnace room temperature.
After removing oil ungrease treatment, remove the greasy dirt and other burs produced in cock 1 course of processing, in order to
The carrying out of subsequent process flow.
S02), cock 1 is carried out blasting treatment；
Concrete, cock 1 to be put in sandblasting machine, the surface to cock 1, the especially conical surface 100 carry out certain time length
Blasting treatment, until the surface roughness of the described conical surface is Ra 1.6-2.0, in order to increase the adhesion on cock 1 surface.
S03), cock 1 is carried out surface cleaning process；
First cock 1 is placed on support, such as with on the support slipped through the net, or has on the support of hook, from
And cock 1 is placed on bushing or hangs on hook.
Concrete, this step is by comprising the following steps:
S031), with the various foreign material on giant delivery cock 1 surface, including the grains of sand, dust and other bur；
S032), cock 1 is dried, such as by empty water and the method for blowing.
S04), cock 1 is carried out spray treatment；
With reference to Fig. 4, in this step, comprise the following steps the most again:
S041) cock 1 is carried out the pre-heat treatment, cock 1 is put in stove and heats, until it reaches 80 DEG C；
S042) conical surface 100 part of cock 1 being sprayed, form 15 microns of thick coatings, the material used by spraying is
Wear-resisting material, such as, be dissolved in the nickel alloy powder in solvent.
S05), cock 1 is sintered.
In this step, comprise the following steps the most again:
S051), stove is put in cock 1, at a temperature of 230 DEG C, to cock 1 heat treated 90 minutes；
S052), after heat treated completes, cock 1 is cooled to room temperature.
After above-mentioned steps, the conical surface of described cock 1 forms wear-resistant coating.
Embodiment three:
S01), the cock 1 to processing profile carries out defat deoiling treatment；
Before cock 1 is carried out defat deoiling treatment, first cock 1 surface is checked, to determine cock 1 surface
Intact, do not damage, scratch and rusty stain.
Concrete, defat deoiling treatment comprises the following steps again:
S011), cock 1 after such as machining or the technique such as casting forms profile, put it in stove, at 330 DEG C
Heating-up temperature under, laser heating 6 hours；
S012), the cock 1 after heat treated is cooled to the furnace room temperature.
After removing oil ungrease treatment, remove the greasy dirt and other burs produced in cock 1 course of processing, in order to
The carrying out of subsequent process flow.
S02), cock 1 is carried out blasting treatment；
Concrete, cock 1 is put in sandblasting machine, the sealing surface 100 of plug valve is carried out the blasting treatment of certain time length,
Until the surface roughness of the described conical surface is Ra 1.6-2.0, in order to increase the adhesion on cock 1 surface.
S03), cock 1 is carried out surface cleaning process；
First cock 1 is placed on support, such as with on the support slipped through the net, or has on the support of hook, from
And cock 1 is placed on bushing or hangs on hook.
Concrete, this step is by comprising the following steps:
S031), with the various foreign material on giant delivery cock 1 surface, including the grains of sand, dust and other bur；
S032), cock 1 is dried, such as by empty water and the method for blowing.
S04), cock 1 is carried out spray treatment；
With reference to Fig. 4, in this step, comprise the following steps the most again:
S041) cock 1 is carried out the pre-heat treatment, cock 1 is put in stove and heats, until it reaches 80 DEG C；
S042) conical surface 100 part of cock 1 being sprayed, form 20 microns of thick coatings, the material used by spraying is
Wear-resisting material, such as, be dissolved in the nickel alloy powder in solvent.
S05), cock 1 is sintered.
In this step, comprise the following steps the most again:
S051), stove is put in cock 1, at a temperature of 270 DEG C, to cock 1 heat treated 130 minutes；
S052), after heat treated completes, cock 1 is cooled to room temperature.
After above-mentioned steps, the conical surface of described cock forms wear-resistant coating.
Embodiment four:
S01), the cock 1 to processing profile carries out defat deoiling treatment；
Before cock 1 is carried out defat deoiling treatment, first cock 1 surface is checked, to determine cock 1 surface
Intact, do not damage, scratch and rusty stain.
Concrete, defat deoiling treatment comprises the following steps again:
S011), cock 1 after such as machining or the technique such as casting forms profile, put it in stove, at 350 DEG C
Heating-up temperature under, laser heating 6 hours；
S012), the cock 1 after heat treated is cooled to the furnace room temperature.
After removing oil ungrease treatment, remove the greasy dirt and other burs produced in cock 1 course of processing, in order to
The carrying out of subsequent process flow.
S02), cock 1 is carried out blasting treatment；
Concrete, cock 1 is put in sandblasting machine, the sealing surface 100 of cock 1 is carried out the blasting treatment of certain time length,
Until the surface roughness of the described conical surface is Ra 1.6-2.0, in order to increase the adhesion on cock 1 surface.
S03), cock 1 is carried out surface cleaning process；
First cock 1 is placed on support, such as with on the support slipped through the net, or has on the support of hook, from
And cock 1 is placed on bushing or hangs on hook.
Concrete, this step is by comprising the following steps:
S031), with the various foreign material on giant delivery cock 1 surface, including the grains of sand, dust and other bur；
S032), cock 1 is dried, such as by empty water and the method for blowing.
S04), cock 1 is carried out spray treatment；
With reference to Fig. 4, in this step, comprise the following steps the most again:
S041) cock 1 is carried out the pre-heat treatment, cock 1 is put in stove and heats, until it reaches 90 DEG C；
S042) conical surface 100 part of cock 1 being sprayed, form 23 microns of thick coatings, the material used by spraying is
Wear-resisting material, such as, be dissolved in the nickel alloy powder in solvent.
S05), cock 1 is sintered.
In this step, comprise the following steps the most again:
S051), stove is put in cock 1, at a temperature of 290 DEG C, to cock 1 heat treated 150 minutes；
S052), after heat treated completes, cock 1 is cooled to room temperature.
After above-mentioned steps, the conical surface of described cock forms wear-resistant coating.
For the cock of other profiles, it is identical with cone principle steps that it processes technique, is not repeating.
Through the cock 1 that the processing technique described in embodiment one to embodiment four is processed, the coating of its cock 1 conical surface and cock
There is between 1 internal structure high degree of fusion so that coating firmly sticks to, in cock 1 internal structure, be formed described close
Front cover 100, this coating is homogeneous simultaneously, has certain pliability, hardness and corrosion resistance so that this cock 1 resistance to
Mill property is greatly enhanced, it is to avoid the fluid media (medium) caused owing to cock 1 sealing surface 100 is lost is revealed, and very big adds rotation
The service life of plug valve, and reliability and persistence；On the other hand, it is possible to realize between the inner chamber of valve body 2 more accurate
Matching relationship, reduces driving torque.
It should be noted that, in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.
It is last that it is noted that obviously above-described embodiment is only for clearly demonstrating example of the present invention, and also
The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out change or the variation of other multi-form.Here without also cannot all of embodiment be given exhaustive.And thus drawn
What Shen went out obviously changes or changes among still in protection scope of the present invention.
Claims (14)
1. a cock processing technique, it is characterised in that comprise the following steps:
S1), the cock to processing profile carries out defat deoiling treatment；
S2), cock is carried out blasting treatment；
S3), cock is carried out surface cleaning process；
S4), cock is carried out spray treatment；
S5), cock is sintered.
Cock processing technique the most according to claim 1, it is characterised in that further comprising the steps of:
Before cock is carried out defat deoiling treatment, first cock surface is checked, intact to determine cock surface, do not have
There is damage.
Cock processing technique the most according to claim 1, it is characterised in that described cock is carried out defat deoiling treatment
Step includes:
Cock is positioned in stove, at a certain temperature, carries out the heat treated of certain time length；
Cool to the cock after heat treated with the furnace room temperature.
Cock processing technique the most according to claim 3, it is characterised in that the temperature of described heat treated is 290 DEG C-
350 DEG C, heat time heating time is 4-6 hour.
Cock processing technique the most according to claim 1, it is characterised in that the described step that cock is carried out blasting treatment
Including:
The conical surface to plug valve carries out the blasting treatment of certain time length, until the surface roughness of the described conical surface is Ra 1.6-
2.0。
Cock processing technique the most according to claim 1, it is characterised in that described cock is carried out surface cleaning process
Step includes:
Various foreign material with giant delivery cock surface；
Cock is dried.
Cock processing technique the most according to claim 1, it is characterised in that the described step that cock is carried out spray treatment
Including:
Cock is carried out the pre-heat treatment；
Cock is sprayed, is formed and there is certain thickness coating.
Cock processing technique the most according to claim 7, it is characterised in that the described step that cock is carried out the pre-heat treatment
Including:
Cock is heated, until it reaches 70 DEG C-90 DEG C.
Cock processing technique the most according to claim 7, it is characterised in that the material spraying described cock is nickel
Alloy.
Cock processing technique the most according to claim 7, it is characterised in that the thickness of described coating is 12-23 micron.
11. cock processing technique according to claim 1, it is characterised in that the described step that cock is sintered
Suddenly include:
At a certain temperature, cock is carried out the heat treated of certain time length；
After heat treated completes, cock is cooled to room temperature.
12. cock processing technique according to claim 11, it is characterised in that in described heat-treatment process, heating
Temperature is 210 DEG C-290 DEG C, and heat time heating time is 70-150 minute.
13. 1 kinds of cocks, it is characterised in that use the cock processing technique described in any one of claim 1-12 to make.
14. 1 kinds of plug valves, it is characterised in that including:
Cock described in claim 13,
Valve body, and
First rotating shaft and the second rotating shaft, wherein,
Described cock is installed in described valve body, and one end of described first rotating shaft is fixed on described valve body, the relative other end
Supporting described cock, described second rotating shaft and described first rotating shaft are relatively fixed in described cock, and drive described cock
Rotate with described first rotating shaft for center of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701223.XA CN106151568A (en) | 2016-08-22 | 2016-08-22 | Cock processing technique, cock and plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701223.XA CN106151568A (en) | 2016-08-22 | 2016-08-22 | Cock processing technique, cock and plug valve |
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| CN106151568A true CN106151568A (en) | 2016-11-23 |
Family
ID=57342212
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610701223.XA Pending CN106151568A (en) | 2016-08-22 | 2016-08-22 | Cock processing technique, cock and plug valve |
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| CN (1) | CN106151568A (en) |
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| CN108187991A (en) * | 2018-02-01 | 2018-06-22 | 成都乘风阀门有限责任公司 | A kind for the treatment of process of cock surface spraying PTFE coating |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108187991A (en) * | 2018-02-01 | 2018-06-22 | 成都乘风阀门有限责任公司 | A kind for the treatment of process of cock surface spraying PTFE coating |
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